Pivoting Razor Cartridge Coupling to Prevent Unintended Release
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing razor assemblies face issues with the exposure of coupling portions, improper coupling direction recognition, and unintended release of razor cartridges during shaving, leading to reduced shaving performance and convenience.
Innovation Solution
A razor assembly design featuring a razor handle with a coupling portion and a restoring force providing portion that minimizes exposure, facilitates easy and accurate coupling, and reduces unintended release, by incorporating a pivotally coupled razor cartridge with a connector and a plunger mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the coupling portion is exposed to the outside for easy access, then the ease of operation is improved, but the coupling portion becomes vulnerable to external impact and damage
Solution Approach 1:
The coupling portion is nested within the housing structure, specifically formed as an internal feature of the handle assembly. The connector and coupling surfaces are positioned inside the housing rather than exposed on the exterior, allowing the housing to act as a protective enclosure while maintaining functional access through designated openings or interfaces.
2Reliability
If the coupling portion is covered to protect it, then the reliability is improved, but the ease of coupling becomes difficult
Solution Approach 1:
The housing is pre-configured with guide surfaces, alignment features, and designated access openings that automatically guide the coupling operation. The coupling portion is positioned and oriented in advance within the housing structure, so that when components are brought together, the alignment and engagement occur automatically without requiring manual manipulation or complex user actions.
3Adaptability or versatility
If the razor cartridge is allowed to pivot freely for flexibility, then the adaptability is improved, but the resting angle increases reducing shaving performance
Solution Approach 1:
The pivot mechanism incorporates a defined range of motion with specific angular parameters. The resting angle is established as a predetermined parameter through the mechanical design of the pivot joint, spring force characteristics, and housing geometry. The system maintains a specific resting angle (e.g., 5-15 degrees) while allowing pivoting within controlled limits, optimizing both shaving performance and adaptability.
4Ease of operation
If the coupling mechanism is simplified for ease of use, then the ease of operation is improved, but the resistance to unintended release decreases
Solution Approach 1:
The coupling mechanism incorporates self-latching features where the connector and coupling portion automatically engage and lock together through their geometric design. The spring-loaded connector automatically applies force to secure the coupling, and the interlocking surfaces prevent disengagement without requiring active user intervention. The system serves itself by automatically maintaining the coupled state through its own structural properties.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design protects the coupling portion from external impact, enhances coupling accuracy, improves shaving performance and convenience, and minimizes cartridge release, thereby extending the lifespan and usability of the razor assembly.
Implementation Method 1
a restoring force providing portion configure to provide a restoring force against pivoting of the razor cartridge
Data Source
AI summary
A razor handle includes a coupling part which is releasably coupled to a razor cartridge and is releasably coupled to a connector, the razor cartridge accommodating at least one blade in the longitudinal direction and being equipped with the connector on one side thereof. The razor handle may also include a restoring force provision part which provides a restoring force with respect to the rotation of the razor cartridge. The coupling part may include an inclined surface on the upper surface of an end portion side thereof. The restoring force provision part may be provided on the upper portion of the coupling part and cover at least a portion of the inclined surface such that the lower surface of the restoring force provision part is spaced apart from the inclined surface.